Drilling-machine.



1). s. WAUGH. DRILLING MACHINE. APPLICATION FILED SEPT. 26, 1909.

I 1,003,018. n ed ept-12,1911.

Z SHEETS-SHEET 1.

- WITNESSES i i 1N VE/VTOR,

D. S. WAUGH.

DRILLING MAGHINE.

APPLICATION FILED SEPT. 25, 1909.

Patented Sept. 12, 1911;

2 SHEETS-SHEET 2.

INVENTOR NITED STATES PATENT OFFICE.

naNIEI. SHAW warren, 01? DENVER, COLORADO, AssroNon TO THE DENVER RookDRILL & MACHINERY COMPANY, or DENVER, COLORADO.

DRIELINwMAoH'INE.

rnoaois.

Application filed September 25, 1909. Serial No. 519,542.

To all whom it may concern:v

Be it known that I, DANIEL SHAW W'AUoH,

I a citizen of the United States, residing at Denver, in the county ofDenver and State of Colorado, have invented certain new and usefulImprovements in Drilling-'Machines, of which the following is aspecification.

The present invention relates more particularly to means for conductinga oleansa ing agent to the drill hole,.as the same is being made by themachine, and the primary object is t provide simple and effectivemechanism, whereby either a liquid or a gaseous cleansing agent can besupplied to the drill hole, said mechanism not interfering.

in any manner with the operative parts of the machine, and occupyingpractically no additional space on.the exteriorofthe drill. Thepreferred form of construction is illustrated in the accompanyingdrawings,

' wherein a.-

Figure 1 is a vertical longitudinal sectional view through a fluidpressure operated drilling machine, showing the holecleaning mechanism.Fig. 2 is a sectional view on the line 22 of Fig. land on an enlargedsca'le. Fig. 3 isa detail rear elevation of the upper portion'of thecylinder member, illustrating the valve operating device. Fig. 4 is ahorizontal sectional view on the line M of Fig, 1.

Similar reference numerals designate corresponding parts in all thefigures of the drawings.

It is believed to be unnecessary to enter into a detailed description ofthe motor disciosed, as the same constitutes the subjectmatter of aco'-pending application, Serial No. 519,543, filed September 25, 1 909.Suffice it to state that the same consists of a cylinder member 5 havinga piston chamber 6, the rear portion of which is reduced by theinsertion of a sleeve or plug 7 having a bore 8 that constitutes anextension of the said piston chamberthat is of less diameter than thesame. A reciprooatory piston 9 operates in the piston chamber 6,. andhas a rod or neck 10 projecting through the front head 11 of thecylinder member. Carried by the .projecting end, is a chuck 12, in whichthe usual drill bit or steel 13 is secured, said bit having alongitudinal passageway 14 for the cleansing fluid. The piston 9 has' areduced rear extension 15, which operates in the bore 8 of the plug orsleeve 7 and said.

piston furthermore is tubular in form. In

cation'with the passageway 14in the drill The rear end of the cylindermember is closed by a suitable head .18 and threaded-or otherwisesecured in this head is a tube 19 that projects longitudinallywithinft-he cylinder member, and into the passageway 16 in the piston. Apacking sleeve or gland 20, secured in the reduced extension of thepiston, snugly surrounds and is slidable upon the tube 19. The head 18has a cham--. ber 21that communicates with the outer end of the tube 19,and two oppositely disposed supply ports 22 and 23 in turn communicatewith the chamber 21. These ports are surrounded at their outer ends byvalve seats 24 coacting with whichar'e outwardly movable valves 25 thathave inwardly extending stems 26 disposed in Opposition to each other. Y

An actuating device, in the form of a lever 27, is fulcrumed in a plug28, screwed into the end of the head 18, and the inner end 29 of thislever is disposed between the stems 26. It will be observed that thefulcrum of said lever is in the form of a ball 30 operating in a socket31 in the plug, and the I outer arm of the lever projects through an'openlng formed in the outer end of said plug. Consequently by swingingthe outer end of the lever in opposite directions, it will be obviousthat either valve may be opened. The valves, however, are normallymaintained in closed sitions by coiled springs 32 that bear againsttheir outer ends, and are located in chambers 33 and 34:. A water supplyis conducted from any suitable source, into the chamber 33 by meansof anipple or coupling 35, threaded into the outer end of said chamber,while the outer end of the chamber 34 is preferably closed by a plug 36.I

Motive fluid for actuating the piston is supplied from any suitablesource to a valve casing 37 located upon one side of the cylindermember, and the supply of this motive fluid to the piston is controlledby a rotary initial or throttle valve 38 having a chamber 39 in one endand a lateral port 40 that is movable into and out of communication witha supply port 41 leading .to the automatic valve 42 of the motor. Amotive fluid-conducting channel 43-leads from the .valve casing 37longitudinally through one wall of the cylinder member, and has alateral terminal portion 44 communicating with the chamber 34. The valve38 furthermore has a slot 45, which registers with the inlet end of thepassage 43.

fluid will be in the chamber 33. VV-henever therefore the operatordesires to clean the drill hole, he has only to move the outer end ofthe actuating device or lever "27 in one tlirection or the other,whereupon one or 'the other of the valves 25 will be opened,

and the gaseous or liquid fluid consequently will pass into the chamber21, through the tube 19, the passageway 16 in the piston, and port 17and thence through the passageway 14 and the drill bitv 13 to the drillhole.

From the foregoing, it is thought that the construction, operation andmany advan-' tages of the herein described invention win he apparent tothose skilled in the art, without further description, and it will beunderstood that various changes in the size, shape, proportion and minordetails of construction may be resorted to without departing from thespirit or sacrificing any of the advantages of the invention.

c Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is 2- 1. Indrilling mechanism, the combination with a motor including a cylindermember having a rear head and a hollow piston operating in the cylinder.member, of a tube connected to the head for conducting a cleasing agent.into the piston, means connected to the head for supplying liquid andgaseous cleansing agents to the tube, which includes oppositely disposedports, oppositely arranged valves for respectively controllin saidports, and an actuating device pivoted on the head and movable in oposite direc tions to operate either valve independently of the other.

,2. In drilling mechanism, the combination with a motor including acylinder member having a rear head that is chambered, of a hollow pistonoperating in the cylinder member, a tube connected to thehead andcommunicating with the chamber, said tube extending into the piston,means for conducting liquid and gaseous cleansing agents into oppositeportions of the chamber, which comprises oppositely arranged controllingvalves for said agents havin stems rojecting into the chamber, and Yalever in crumed on and projecting from the rear side of the head, saidlever having an exposed actuating end and also having. an end located inthe chamber between the valve stems;

In testimony whereof, I afiix my signature in presence of witnesses.

DANIEL SHAW WAUGH. Witnesses: a W. H. LEONARD,

WILLIAM H. LEONARD, HERBERT E. FIBRE. I

